Also WA, NT, SA, Qld, NSW. Very rare in Victoria, known from the Murray River floodplain in far north-west of the State. Possibly because the species is a post-flood ephemeral it had not been collected since 1981, but rediscovered at Mulcra Island in 2017 and at Hattah-Kulkyne National Park in 2018. Typically occurring only after substantial floods.